Size 2 brass coupling for 1-7/8" OD blast hose. Standard size 2-lug style. Size 2 Fits 1-7/8" OD blast hose Standard 2-lug Brass body Uses 10SBG or 10USBG gaskets
Size 1 brass coupling for 1-1/2" OD blast hose. Standard size 2-lug style. Size 1 Fits 1-1/2" OD blast hose Standard 2-lugs style Brass body Use 10SBG or 10USBG gaskets